A double-hole cantilever beam strain gauge dynamic electronic small unmanned vehicle scale, comprising a resistive strain sensor system, a voltage signal amplification circuit, an A/D data collection and conversion circuit, a controller, a resistance strain gauge measurement circuit, a display, an information input device and a scale health status monitoring system. The resistive strain sensor system uses resistance strain gauges as sensitive elements of a weighing sensor, a cantilever beam of the resistance strain gauges utilises a double-hole beam structure, the plate-shaped beam is provided with two square holes, and the resistance strain gauges are adhered to inner walls of the two holes, so that the four strain gauges are located in opposite stress areas in two groups. The unmanned vehicle scale which utilises the described structure improves instrument service life and reliability.
展开▼
